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STAT4 Antibody (PA5-81044) in ICC/IF
Immunofluorescence staining of STAT4 in HeLa cells. Cells were fixed with 4% PFA, blocked with 10% serum, and incubated with STAT4 Polyclonal Antibody (Product # PA5-81044, 1:1,000) at 4°C overnight. Then cells were stained with the Alexa Fluor®594-conjugated Goat Anti-rabbit IgG secondary antibody (red). Positive staining was localized to cytoplasm and nucleus..
Product Details
PA5-81044
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Human
Host/Isotype
Rabbit
/ IgG
Class
Polyclonal
Type
Antibody
Immunogen
A synthetic peptide corresponding to the C-terminus of the Human STAT4
Conjugate
Form
Liquid
Concentration
1 mg/mL
Purification
Protein A, Antigen affinity chromatography
Storage buffer
PBS
Contains
no preservative
Storage conditions
Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
AB_2788296
Product Specific Information
This product is preservative free. It is recommended to add sodium azide to avoid contamination (final concentration 0.05%-0.1%).
This antibody has specificity for Human STAT4.
Target Information
STAT4 was originally identified using degenerate primers complementary to sequences encoding conserved regions of other STAT proteins. The STAT4 protein is most similar to STAT1 (52%) and STAT3 (47%). Functionally, STAT4 is similar to other STAT family members in that it can be tyrosine phosphorylated by Jak1 or Jak2. STAT4 forms homodimers and heterodimers with related STAT family members. Tyrosine phosphorylated STAT4 can bind the IFN-gamma activated site (GAS). Serine phosphorylation of STAT is also required for maximal transcriptional activity. STAT4 expression is restricted to the thymus, spleen and testis. Until recently the cytokine(s) responsible for activation of STAT4 had not been identified. STAT4 is now known to be activated by the cytokine interleukin 12 (IL-12). IL-12 is required for the T-cell independent induction of IFN-gamma which is a key step in the initial suppression of bacterial and parasitic infections. In addition, IL-12 is required for the development of a Th1 response which is necessary for effective host defense against intracellular pathogens. STAT4-deficient mice display impaired IL-12 development of Th1 cells and enhanced development of Th2 cells. A recent study in mouse has shown that in response to viral infection IFN-a/b activation of STAT4 is required for IFN-g production.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: CIS4; HSPC060; OTTHUMP00000163553; Signal transducer and activator of transcription 4; SOCS4; SOCS6; SSI4; STAI4; STAT; STATI4
Gene Aliases: SLEB11; STAT4
UniProt ID: (Human) Q14765
Entrez Gene ID: (Human) 6775
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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